Temperature Converter
Enter a temperature in any of the three major scales — Celsius, Fahrenheit, or Kelvin — and see the equivalent values in the other two scales instantly. The conversion updates as you type, with results shown to two decimal places.
Celsius is used by most of the world for everyday weather and cooking temperatures. Fahrenheit is used in the United States. Kelvin is the SI unit used in science, starting at absolute zero. The formulas are non-linear (not simple multiplication), so mental math is tricky — this tool makes it instant.
Useful for cooking (converting recipe temperatures between C and F), travel (understanding weather forecasts in a different country), and science (converting to Kelvin for thermodynamic calculations).
By The Paper Room Editorial Team — Converter Tools
Frequently asked questions
What is the formula to convert Celsius to Fahrenheit?▼
F = (C x 9/5) + 32. For example, 100 C = (100 x 1.8) + 32 = 212 F (the boiling point of water).
What is absolute zero?▼
Absolute zero is 0 Kelvin, which equals -273.15 Celsius or -459.67 Fahrenheit. It is the lowest possible temperature — the point at which molecular motion effectively stops.
Why is Kelvin used in science?▼
Kelvin starts at absolute zero and has the same degree size as Celsius, making it an absolute scale. This is essential for thermodynamic equations and gas laws where ratios of temperatures are meaningful — dividing by zero or negative temperatures would produce nonsensical results.